The O/P Power of a power amplifier is several times its input power. It is possible because Options: A . &nbsppower amplifier introduces a -ve resistance B . &nbspthere is +ve feed back in the circuit C . &nbspstep up transformer is use in the circuit D . &nbsppower amplifier converts a part of I/P d.c. power into a.c. power

The O/P Power of a power amplifier is several times its input power. It is possi

Question

The O/P Power of a power amplifier is several times its input power. It is possible because

Options:

A . power amplifier introduces a -ve resistance

B . there is +ve feed back in the circuit

C . step up transformer is use in the circuit

D . power amplifier converts a part of I/P d.c. power into a.c. power

Answer: Option D
Answer: (d).power amplifier converts a part of I/P d.c. power into a.c. power

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